Alex Williamson c5e6688752 vfio/type1: Add conditional rescheduling ... IOMMU operations can be expensive and it's not very difficult for a user to give us a lot of work to do for a map or unmap operation. Killing a large VM will vfio assigned devices can result in soft lockups and IOMMU tracing shows that we can easily spend 80% of our time with need-resched set. A sprinkling of conf_resched() calls after map and unmap calls has a very tiny affect on performance while resulting in traces with <1% of calls overflowing into needs- resched. Signed-off-by: Alex Williamson <alex.williamson@redhat.com>		2015-02-06 14:19:12 -07:00
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pci	vfio-pci: Fix the check on pci device type in vfio_pci_probe()	2015-01-07 10:29:11 -07:00
Kconfig	drivers/vfio: allow type-1 IOMMU instantiation on top of an ARM SMMU	2014-11-14 09:10:59 -07:00
Makefile	drivers/vfio: Fix EEH build error	2014-08-08 10:36:20 -06:00
vfio_iommu_spapr_tce.c	drivers/vfio: EEH support for VFIO PCI device	2014-08-05 15:28:48 +10:00
vfio_iommu_type1.c	vfio/type1: Add conditional rescheduling	2015-02-06 14:19:12 -07:00
vfio_spapr_eeh.c	drivers/vfio: Export vfio_spapr_iommu_eeh_ioctl() with GPL	2014-09-29 10:31:51 -06:00
vfio.c	driver core: dev_set_drvdata can no longer fail	2014-05-27 13:40:51 -07:00